我想检查请求的状态代码到url但是获取代码
java.net.ConnectException: connect: Address is invalid on local machine or port is not valid on remote machine
这是我的代码
public static boolean linkExists(String URLName){
URLName = "http://www.google.com";
try {
HttpURLConnection.setFollowRedirects(false);
HttpURLConnection con =
(HttpURLConnection) new URL(URLName).openConnection();
con.connect();
System.out.println(con.getResponseCode());
return (con.getResponseCode() == HttpURLConnection.HTTP_OK);
}
catch (Exception e) {
return false;
}
}
堆栈跟踪
java.net.ConnectException: connect: Address is invalid on local machine, or port is not valid on remote machine
at java.net.DualStackPlainSocketImpl.connect0(Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:69)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:200)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)
at java.net.Socket.connect(Socket.java:579)
at java.net.Socket.connect(Socket.java:528)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:378)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:473)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:203)
at sun.net.www.http.HttpClient.New(HttpClient.java:290)
at sun.net.www.http.HttpClient.New(HttpClient.java:306)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:995)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:931)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:849)
at com.sls.lms.test.utilities.Utilities.linkExists(Utilities.java:70)
at com.sls.lms.test.report.ReportTest.checkReportData(ReportTest.java:70)
at com.sls.lms.test.report.ReportTest.CheckReportForGST(ReportTest.java:30)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at org.junit.runner.JUnitCore.run(JUnitCore.java:138)
at org.testng.junit.JUnit4TestRunner.start(JUnit4TestRunner.java:81)
at org.testng.junit.JUnit4TestRunner.run(JUnit4TestRunner.java:69)
at org.testng.TestRunner$1.run(TestRunner.java:682)
at org.testng.TestRunner.runWorkers(TestRunner.java:1012)
at org.testng.TestRunner.privateRunJUnit(TestRunner.java:713)
at org.testng.TestRunner.run(TestRunner.java:614)
at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
at org.testng.SuiteRunner.run(SuiteRunner.java:240)
at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
at org.testng.TestNG.runSuitesSequentially(TestNG.java:1198)
at org.testng.TestNG.runSuitesLocally(TestNG.java:1123)
at org.testng.TestNG.run(TestNG.java:1031)
at org.testng.TestNG.privateMain(TestNG.java:1338)
at org.testng.TestNG.main(TestNG.java:1307)
答案 0 :(得分:9)
我认为这个问题是由Java试图使用IPV6地址引起的,当你的操作系统不支持它,或者没有正确设置来处理它时。
您可以强制Java使用具有以下属性的IPV4地址:
-Djava.net.preferIPv4Stack =真
答案 1 :(得分:1)
我注意到的一件事是您的URL连接尚未使用...您还没有调用connect()。如果修复了您的问题,我会对错误消息感到失望,但在您提出请求之前,您可能无法获得响应代码。
http://docs.oracle.com/javase/6/docs/api/java/net/URLConnection.html
答案 2 :(得分:0)
Eclipse 对我来说很好用。一定要接受Nikolay的建议并检查你是否有防火墙在运行。我见过的与此异常相关的任何论坛帖子都与此情况有关。
答案 3 :(得分:0)
关闭所有java程序并打开运行( winkey + R )或者如果你有像我这样的开始按钮,只需搜索运行,然后编写-Djava.net.preferIPv4Stack=true
in。:)
答案 4 :(得分:0)
遇到此问题,但只是关闭我的防病毒软件,并且它正在运行,这与阻止端口的防病毒软件有关。
答案 5 :(得分:0)
我遇到了同样的问题。 我有windows8 64使用netbeans7.4。 我的杀毒软件是卡巴斯基。解决方案是 关闭防病毒软件或使防病毒软件暂停,然后运行它将起作用的代码
import java.net.*;
import java.io.*;
public class URLReader {
public static void main(String[] args) throws Exception {
URL oracle = new URL("http://www.oracle.com/");
BufferedReader in = new BufferedReader(
new InputStreamReader(oracle.openStream()));
String inputLine;
while ((inputLine = in.readLine()) != null)
System.out.println(inputLine);
in.close();
}
}
答案 6 :(得分:0)
我遇到了同样的问题。我的病毒就是卡巴斯基。解决方法是,打开kapsperksy-&gt; settings-&gt;防病毒保护 - &gt; moinitored ports-&gt;选择
答案 7 :(得分:0)
尝试使用IPv4地址和端口0打开Socket时收到此消息。可能是您在查看此消息时应检查使用的端口。
答案 8 :(得分:0)
我通过提供服务器的IP地址和端口号来建立到远程服务器的套接字连接。能够对服务器执行ping操作,还可以远程登录到端口。因此,没有连接问题,问题中仍然出现了相同的错误。 我犯了一个愚蠢的错误,即传入一个空字符串来创建套接字实例。使用调试模式指出此类错误非常有用。